The Bismarck Tribune reports that Bachmeier Farms, Nick Vollmuth and Gary Sandland allege that Wilder Ranch bison have been trespassing on their land for years and damaging pasture, crops, hay and fences.

The complex case has lingered for years. In February, authorities rounded up thousands of Wilder bison after reports of starving animals. Wilder paid $57,000 for feed and expenses after the impoundment ended, and in March about 850 bison were auctioned.

More were impounded in April. Wilder's attorney wants a judge to determine final costs for damages and end the impoundment. A June 21 court hearing is scheduled.